Re: Is an SD/MMC card more robust than a CF card?

...
That's not really a problem. Once it's in contact, dust won't affect
it much. CF (pins and sockets) can take 10G (it's in the spec) of
shocks and vibrations. The weakness is insertion aligment, rather than
anything else. A slightly bended pin can just punch out the socket
foil. That's why we never remove the CF from the socket at all.

Dust can be a problem if its not excluded by the plug/socket
construction. We ran into this years ago on gear in tractors -
admittedly then a very bad environment. Had many failures on ordinary
DIP ICs mounted in both wipe and turned pin sockets. Dust would enter
the socket, and vibration would wear away the pins to the extent that
you could tap the boards on the bench, and several ICs would simply fall
off, minus their pins.


That's not a problem for CF. The pins are round and tight fit into the
round openings. Some new CF has openings slightly smaller than the
pins, and be enlarged to the exact size when inserted. If you never
remove the CF from the adapter, the seal will be good. Furthermore, we
put aluminium cover around the pins to protect them from accidental
bending, and chemical dust as well.

.

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